全部，

我只是想让 zpipe 演示使用 dev-c++ 工作，其中我导入了所有 zlib 代码并使用 zpipe.c 作为示例。一切都编译并运行。如果我尝试使用注释掉的对 deflateInit2 的调用创建一个 gzip 文件，它会创建现在错误，但在使用 7zip 解压缩时已损坏。如果我使用标准的 zlib 头文件来创建文件，当我使用相应的调用来膨胀时，它会返回 -3/Z_DATA_ERROR 指示我的默认数据已损坏。一切都指向定义中的错误，但它几乎正是示例。

有任何想法吗？？非常感谢!

int main(int argc, char **argv) 
{ 
     int ret; 
     FILE *source; 
     FILE *zip; 
     FILE *zipped; 
     FILE *back; 
 
     source = fopen ("C:\\Users\\schmoudm\\Pictures\\caela.jpg", "r"); 
     zip = fopen ("C:\\Core\\RD\\test.gz", "w"); 
 
     printf ("calling def \n"); 
     ret = def(source, zip, Z_DEFAULT_COMPRESSION); 
     printf("def return: %i \n", ret); 
     fclose(source); 
     fclose(zip); 
 
     if (ret == 0) { 
        printf ("setting up inf \n"); 
        zipped = fopen ("C:\\Core\\RD\\test.gz", "r");  
        back = fopen ("C:\\Core\\RD\\zlibout.txt", "w");  
        printf ("calling inf \n"); 
        ret = inf(zipped, back);  
        printf("inf return: %i \n", ret);   
        zerr(ret); 
     } 
 
    fclose(source); 
    fclose(zip); 
 
    printf("DONE!"); 
    system("PAUSE"); 
    return 0; 
} 
 
int def(FILE *source, FILE *dest, int level) 
{ 
    int ret, flush; 
    unsigned have; 
    z_stream strm; 
    unsigned char in[CHUNK]; 
    unsigned char out[CHUNK]; 
 
    /* allocate deflate state */ 
    strm.zalloc = Z_NULL; 
    strm.zfree = Z_NULL; 
    strm.opaque = Z_NULL; 
 
    ret = deflateInit(&strm, Z_DEFAULT_COMPRESSION); 
    //ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, (15+16), 8,       Z_DEFAULT_STRATEGY); 
    if (ret != Z_OK) 
        return ret; 
 
    /* compress until end of file */ 
    do { 
        strm.avail_in = fread(in, 1, CHUNK, source); 
        printf("available in: %u \n", strm.avail_in);   
        if (ferror(source)) { 
            (void)deflateEnd(&strm); 
            return Z_ERRNO; 
        } 
        flush = feof(source) ? Z_FINISH : Z_NO_FLUSH; 
        strm.next_in = in; 
 
        /* run deflate() on input until output buffer not full, finish 
           compression if all of source has been read in */ 
        do { 
            strm.avail_out = CHUNK; 
            strm.next_out = out; 
            ret = deflate(&strm, flush);    /* no bad return value */ 
            assert(ret != Z_STREAM_ERROR);  /* state not clobbered */ 
            have = CHUNK - strm.avail_out; 
            if (fwrite(out, 1, have, dest) != have || ferror(dest)) { 
                (void)deflateEnd(&strm); 
                return Z_ERRNO; 
            } 
        } while (strm.avail_out == 0); 
        assert(strm.avail_in == 0);     /* all input will be used */ 
 
        /* done when last data in file processed */ 
    } while (flush != Z_FINISH); 
    assert(ret == Z_STREAM_END);        /* stream will be complete */ 
 
    /* clean up and return */ 
    (void)deflateEnd(&strm); 
    return Z_OK; 
} 

请您参考如下方法:

but its pretty much exactly the example.

#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__) 
#  include <fcntl.h> 
#  include <io.h> 
#  define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY) 
#else 
#  define SET_BINARY_MODE(file) 
#endif 

/* avoid end-of-line conversions */ 
SET_BINARY_MODE(stdin); 
SET_BINARY_MODE(stdout);